@misc{indiciae7570b20ee4ed,
  title = {Early prenatal diagnosis by chorionic villi sampling.},
  author = {T B Perry and M J Vekemans and A Lippman and E F Hamilton and P J Fournier},
  year = {1987},
  doi = {10.1159/000413452},
  url = {https://pubmed.ncbi.nlm.nih.gov/3556027/},
  note = {Source identifier: 3556027}
}